A Boat Moves Through the Water in a River at a Speed

question 81

Multiple Choice

A boat moves through the water in a river at a speed of 8 m/s relative to the water. The boat makes a trip downstream and then makes a return trip upstream to the original starting place. Which trip takes less time?

• A) the downstream trip
• B) the upstream trip
• C) Both trips take the same amount of time.
• D) The answer cannot be figured without knowing the speed of the river flow.

---

Definitions:

Cognitive-Behavioral Therapy

A therapeutic technique that targets unhealthy feelings, actions, and thoughts with a purpose-driven, organized method.

Negative Cognitive Triad

Perspective seen in depressed people in which they have negative views of themselves, of the world, and of the future.

Depression

An affliction related to mental health, manifested by lasting downtrodden spirits or disinterest in usual hobbies, causing substantial daily life disruption.

Cortisol

Hormone that helps the body respond to stressors, inducing the fight- or- flight response.